| Elementary--no previous knowledge of electricity or radio required--popular demand for simple practical instruction--easy to start-- simple apparatus will do--range of cost--how to begin receiving at once--no license required for receiving--may purchase complete outfit or separate instruments--same outfit receives both telephone and telegraph signals--telephone easier and more entertaining--broadcasting music, lectures, news, market reports, sports, interviews, church services--important developments by amateurs--open field for experiment--advise start with simple set and build up with experience. |